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author | jsdelfino <jsdelfino@13f79535-47bb-0310-9956-ffa450edef68> | 2011-01-10 19:51:07 +0000 |
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committer | jsdelfino <jsdelfino@13f79535-47bb-0310-9956-ffa450edef68> | 2011-01-10 19:51:07 +0000 |
commit | c791fd804344b8719fb69be84b8174c84cc4f4dc (patch) | |
tree | 87852f7762ea06d4e47855e5176a65af8a4bee44 /sandbox/sebastien/java/wrapped/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Map2MapTransformer.java | |
parent | 181bc548fd1a9b5a6f39882cb4102751230de642 (diff) |
Sandbox to experiment with Databinding automatic wrapper transformations.
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1057335 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'sandbox/sebastien/java/wrapped/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Map2MapTransformer.java')
-rw-r--r-- | sandbox/sebastien/java/wrapped/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Map2MapTransformer.java | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/sandbox/sebastien/java/wrapped/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Map2MapTransformer.java b/sandbox/sebastien/java/wrapped/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Map2MapTransformer.java new file mode 100644 index 0000000000..5be7ba1da4 --- /dev/null +++ b/sandbox/sebastien/java/wrapped/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Map2MapTransformer.java @@ -0,0 +1,108 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.core.databinding.transformers; + +import java.util.Map; + +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.UtilityExtensionPoint; +import org.apache.tuscany.sca.databinding.BaseTransformer; +import org.apache.tuscany.sca.databinding.Mediator; +import org.apache.tuscany.sca.databinding.PullTransformer; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.interfacedef.DataType; + +/** + * This is a special transformer to transform the output from one IDL to the + * other one + * + * @version $Rev$ $Date$ + */ +public class Map2MapTransformer extends BaseTransformer<Map, Map> implements PullTransformer<Map, Map> { + + private static final String JAVA_MAP = "java:map"; + protected Mediator mediator; + + public Map2MapTransformer(ExtensionPointRegistry registry) { + super(); + this.mediator = registry.getExtensionPoint(UtilityExtensionPoint.class).getUtility(Mediator.class); + } + + @Override + public String getSourceDataBinding() { + return JAVA_MAP; + } + + @Override + public String getTargetDataBinding() { + return JAVA_MAP; + } + + /** + * @see org.apache.tuscany.sca.databinding.BaseTransformer#getSourceType() + */ + @Override + protected Class<Map> getSourceType() { + return Map.class; + } + + /** + * @see org.apache.tuscany.sca.databinding.BaseTransformer#getTargetType() + */ + @Override + protected Class<Map> getTargetType() { + return Map.class; + } + + /** + * @see org.apache.tuscany.sca.databinding.Transformer#getWeight() + */ + @Override + public int getWeight() { + return 10; + } + + @SuppressWarnings("unchecked") + public Map transform(Map sourceMap, TransformationContext context) { + try { + if (sourceMap == null) { + return null; + } + DataType<DataType> sourceType = context.getSourceDataType(); + DataType<DataType> targetType = context.getTargetDataType(); + Map targetMap = createMap(targetType.getPhysical()); + for (Object sourceItem : sourceMap.entrySet()) { + Map.Entry entry = (Map.Entry)sourceItem; + Object targetValue = + mediator.mediate(entry.getValue(), sourceType.getLogical(), targetType.getLogical(), context + .getMetadata()); + targetMap.put(entry.getKey(), targetValue); + } + return targetMap; + } catch (Exception e) { + throw new TransformationException(e); + } + } + + private Map createMap(Class<?> collectionClass) throws Exception { + return (Map)collectionClass.newInstance(); + } + +} |